Eduaed luhmann



(No Model.)

ILLUHMANN;

APPARATUS FOR REMOVING GASESZFROM LIQUIDS. No. 389,621;

Patented Sept. 11, 1 888.

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77277265985, Jhyeniar.

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N. PETERS, PhotoLithngraphlr. Washington. 9.6.

UNITED STATES PATENT OFFIGE.

EDUARD LUHMANN, OF NIEDERMENDIG, HESSE, GERMANY, ASSIGNDR OF ONE-HALF TO CARL GUSTAV BOMMENHOLLER, OF ROTTERDAM,

' NETHERLANDS.

APPARATUS FOR-REM OVlNG GASES FROM LIQUIDS.

SPECIFICATION forming part of Letters Patent No. 389,521, dated September 11, 1888.

Application filed January 17, 1888. Serial No. 261,069. (No model.)

To all whom it may concern:

Be it known that I, Dr. EDUARD LUHMANN, a subject of the King of Prussia, German Emperor, residing'at Niedermendig, in the Grand Duchy of Hesse,German Empire, chemist, have invented certain new and useful Improvements in Apparatus for Removing Gases from Liquids, of which the following is a full and clear specification.

My improvements have for their purpose to remove or drive out gas or steam continually from any liquid; and my invention consists of an apparatus having a vacuum-pan mounted on a suitable frame-wo1'k,and being provided with a vertical partition in the form of a spiral and an inlet and outlet pipe for the fluid. It also stands in communication with an airpump. These improvements are shown in the accompanying drawings, in which- Figure 1 is a sectional side elevation of the complete apparatus, and Fig. 2 represents a horizontal section on line 00 w of Fig. 1.

Similar letters of reference represent similar parts in both figures.

G is a suitable frame-work constructed and made to carry the vacuum-pan A.

B is the inlet-pipe entering pan A from below in the center; 0, the outlet-pipe entering pan A near its side. Inside the pan is arranged the spiral wall or partition W, commencing at the center of the pan and ending behind the outlet-pipe G. I

V is a common gageglass applied to the an. p D is apipe leading from the upper part of the pan A to an air-pump or similar apparatus for removing gaseous matter.

E and F are gutters, of which the one E is somewhat higher than the other one,F. Pipe B is conducted to gutter Ethat is, the higher one-While pipe G communicates with the lower gutter, F.

The manner in which the apparatus operates is as follows: Let it be supposed the apparatus is to be used for driving out carbonic acid from a liquid containing such at ordinarypressure. This liquid is conducted into gutter E in such a quantity that its level rises above the end of pipe B. Before commencing to put the air-pump into motion it is necessary to also fill gutter F with a liquid-for instance, water.

When the air-pump commences to work, it creates a vacuum in pan A, and the atmos pheric pressure without makes the fluid rise in pipes B and C until it meets in the pan.

It must be mentioned here that it is profit able to make pipes B and 0 about twenty-five feet high, (this being the height the atmos' pheric pressure will drive the liquid when a nearly complete Vacuum is created with pan A,) because it then cannot happen that the liquid enters pipe D and runs off into the airpump. After both liquids have met in the pan the liquid from gutter E will continuously be drawn through pipe B into pan A, where it runs along the partition W in the direction of the arrows of Fig. 2. Hereby the carbonic acid or the like is liberated from the liquid and sucked off through D, while the liquid descends through pipe 0 into gutter F, as the latters level is lower than that of E, and the whole system consisting of gutter E, pipe B, pan A, and pipe 0 acts like an ordinary suction-tube.

The afflux of the liquid to the pan is automatically regulated by the force or velocity with which the gases are drawn off by the pump, for if the gases from the liquid rise in such a quantity that the air-pump cannot draw it off fast enough, then the liquid falls in both the pipes B and O by the vacuum in the pan A being partly destroyed, and it does not rise again until the air-pump has drawn ol'i' all the gas and again formed a vacuum, and consequently no liquid can flow direct through'without first having the gas extracted therefrom.

This improved apparatus can be used in sugar-refineries in place of the cumbersome vacuum-pans at present in use, the liquid be ing heated after being drawn up into the pan A. It may also be used in mineral-water factories for extracting carbonic-acid gas from water containing the same, and, indeed, in a large number of purposes in the arts where it is necessary to extract gas or a gaseous matter from a liquid.

In some cases it may not be necessary to provide the pan with the spiral partition,and,

besides that, the latter need not have exactly the form of a spiral as long as it leads the liquid a great distance through the pan.

Having particularly described and ascer- 5 tained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is- 1. In apparatus for removing gases from liquids, the combination of a vacuum-pan, hav- IO ing the shorter pipe,B,and the longer pipe,O,

and provided with a spiral, \V, and the exitpipe D, substantially as set forth.

2. An apparatus for liberating gaseous mat- EDUARD LUHMANN.

\Vitnesses:

W. D. VVARNER, GUSTAVE ALBERT OELRroHs. 

